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module Service.MailService
( send
) where
import Control.Arrow (left)
import Control.Exception (SomeException, try)
import Data.Text (Text)
import qualified Data.Text as T
import qualified Data.Text.IO as T
import qualified Data.Text.Lazy as LT
import Data.Text.Lazy.Builder (fromText, toLazyText)
import qualified Network.Mail.Mime as Mime
import Model.Mail (Mail)
import qualified Model.Mail as Mail
send :: Bool -> Mail -> IO (Either Text ())
send isMock mail =
if isMock then do
putStrLn $ "MOCK sending mail " ++ (show mail)
return . Right $ ()
else do
result <-
left (T.pack . show) <$>
(try (Mime.renderSendMail . getMimeMail $ mail) :: IO (Either SomeException ()))
case result of
Left err ->
T.putStrLn . T.concat $
[ "Error sending the following email ("
, T.pack . show $ mail
, ":\n"
, err
]
Right _ ->
return ()
return result
getMimeMail :: Mail -> Mime.Mail
getMimeMail mail =
let fromMail = Mime.emptyMail . address . Mail.from $ mail
in fromMail
{ Mime.mailTo = map address . Mail.to $ mail
, Mime.mailParts =
[ [ Mime.plainPart . strictToLazy . Mail.plainBody $ mail ]
]
, Mime.mailHeaders = [("Subject", Mail.subject mail)]
}
address :: Text -> Mime.Address
address addressEmail =
Mime.Address
{ Mime.addressName = Nothing
, Mime.addressEmail = addressEmail
}
strictToLazy :: Text -> LT.Text
strictToLazy = toLazyText . fromText
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